JAL-1240 avoid NPE when source has no proxy available

diff --git a/src/jalview/ws/DBRefFetcher.java b/src/jalview/ws/DBRefFetcher.java
index a55658b..17c1bc9 100644 (file)
--- a/src/jalview/ws/DBRefFetcher.java
+++ b/src/jalview/ws/DBRefFetcher.java
@@ -136,10 +136,13 @@ public class DBRefFetcher implements Runnable
       {
         jalviewSourceI src = en.nextElement();
         List<DbSourceProxy> sp = src.getSequenceSourceProxies();
-        selsources.addAll(sp);
-        if (sp.size() > 1)
+        if (sp != null)
         {
-          Cache.log.debug("Added many Db Sources for :" + src.getTitle());
+          selsources.addAll(sp);
+          if (sp.size() > 1)
+          {
+            Cache.log.debug("Added many Db Sources for :" + src.getTitle());
+          }
         }
       }
       // select appropriate databases based on alignFrame context.